STN EN ISO 28079
| Name: | STN EN ISO 28079 |
| Validity: | Valid |
| Number of pages: | 24 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| Slovak title | Spekané karbidy. Palmqvistova skúška húževnatosti (ISO 28079: 2026) |
| English title | Hardmetals - Palmqvist toughness test (ISO 28079:2026) |
| Release Date: | 01. 04. 2026 |
| Date of withdrawal: | |
| ICS: | 77.040.10, 77.160 |
| Sorting character/National clasification code | 42 0875 |
| Level of incorporation: | idt EN ISO 28079:2026, idt ISO 28079:2026 |
| Official Journal | 03/26 |
| Amendments | |
| Replaced by: | |
| Repleces: | |
| Note in Official Journal: | |
| Subject of the standard: | This document specifies a method for measuring the Palmqvist toughness of hardmetals and cermets at room temperature by an indentation method. This document is applicable to a measurement of toughness, called Palmqvist toughness, calculated from the total length of cracks emanating from the corners of a Vickers hardness indentation, and it is intended for use with metal-bonded carbides and carbonitrides (normally called hardmetals, cermets or cemented carbides). The test procedures specified in this document are applicable for use at ambient temperatures, but can be extended to higher or lower temperatures by agreement. The test procedures specified in this document are also applicable for use in a normal laboratory-air environment. This document is not applicable for use in corrosive environments, such as strong acids or seawater. |
| Preview: | Náhľad normy (PDF) |